Synthesis, structure and properties of nickel-iron-tungsten alloy electrodeposits - part I: Effect of synthesis parameters on chemical composition, microstructure and morphology

N. Cirovic, P. Spasojevic, L. Ribic-Zelenovic, P. Maskovic, M. Spasojevic
2015 Science of Sintering  
Kinetic and operational electrolysis parameters determine the polarization characteristics, electrodeposition current efficiency, morphology, chemical composition and microstructure of nickel/iron/tungsten alloy deposits. The alloys electrodeposited at a current density of 50 mAcm -2 to 1000 mAcm -2 contain an amorphous phase and nanocrystals of an FCC solid solution of iron and tungsten in nickel. During annealing at temperatures above 500ºC, amorphous phase crystallization, crystalline grain
more » ... crystalline grain growth of the FCC phase and a reduction in both internal microstrain and minimum density of chaotically distributed dislocations take place in the alloy. Milling the spongy deposit of the alloy causes amorphous phase crystallization, FCC-phase crystalline grain growth, and size reduction and rounding of powder particles.
doi:10.2298/sos1503347c fatcat:eed3aeqzxbatfkw24trfowbve4